Abstract
A new Brauer-type Z-eigenvalue inclusion set for tensors is given and proved to be tighter than those in Wang et al. (Discrete Contin. Dyn. Syst., Ser. B. 22(1), 187–198, 2017). Based on this set, a sharper upper bound for the Z-spectral radius of weakly symmetric nonnegative tensors is obtained. Numerical examples are reported to verify the theoretical results.
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